Toothbrush



FIG. 1 is a perspective view of a toothbrush, showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is an end elevational view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is an elevational view of the end opposite that shown in FIG. 3;

FIG. 6 is a bottom plan view thereof.

The ornamental design for a toothbrush, as shown.